docs: def cltext(fname):
      """
      Internal undocumented command for closing a text file opened by RDTEXT.
  
      No URL available; relevant lines from SPICE source:
  
      FORTRAN SPICE, rdtext.f::
  
          C$Procedure  CLTEXT ( Close a text file opened by RDTEXT)
                ENTRY  CLTEXT ( FILE )
                CHARACTER*(*)       FILE
          C     VARIABLE  I/O  DESCRIPTION
          C     --------  ---  --------------------------------------------------
          C     FILE       I   Text file to be closed.
  
      CSPICE, rdtext.c::
  
          /* $Procedure  CLTEXT ( Close a text file opened by RDTEXT) */
          /* Subroutine */ int cltext_(char *file, ftnlen file_len)
  
  
      :param fname: Text file to be closed.
      :type fname: str
      """
      fnameP    = stypes.stringToCharP(fname)
      fname_len = ctypes.c_int(len(fname))
      libspice.cltext_(fnameP, fname_len)